Question

'Ozone Day' is observed on
1. January, 30
2. April, 21
3. September, 16
4. December, 25
5. October, 10

Answer 1

Correct Answer - Option 3 : September, 16

Explanation:

• World Ozone Day is observed on 16 September every year, since 1995
• This day reminds the signing of the Montreal Protocol on substances that deplete the Ozone Layer.
• The Montreal Protocol was aimed at protecting the Earth’s ozone layer by eliminating the use of ozone-depleting substances.

 

• Chlorofluorocarbons (CFCs) are the main substance that depletes the ozone layer.
• Ozone layer thickness is measured in Dobson units. Ozone is an O3 molecule.
• The ozone layer is present mostly in the Stratosphere and partially in the Troposphere.

30 January	Martyrs' Day or Shaheed Diwas
21 April	National Civil Service Day
25 December	Good Governance Day